Build out nicer screens when something goes wrong

[george08]

In the app:

• 404 - george - all http codes; looks like Flickypedia

If Sontag is asleep:

• 503, gateway timeout - for all tools or Wordpress is down, look like flickr.org

[george08]

Maybe for second case: https://www.flickr.com/search/?is_commons=1&text=asleep